Am winterizing again and my display is showing 1/3 fresh water. I have opened the drain valves in my wet bay (2 blue 1 red) and all seem empty. I would like to verify that the fresh water tank is empty so I went looking under the motorhome but can't seem to find it. The gravity fill I'd towards the rear but all I find is below is the gas tank. I thought that maybe I could slide a siphon hose down to verify the tank is empty but still not sure I have reached the tank. My question is, where are the tanks, do they have a lower side (like a sump) is there a way to see through the or in?
Thanks in advance
2008 Allegro Bay TSD